<div id="nav">
    <ul class="png">
    <!--{php $total_crumb=count($crumb_nav)}-->
    <!--{loop $crumb_nav $k $v}-->
        <!--{if $k+1==$total_crumb}-->
        <li class="png last"><span>{$v['name']}</span></li>
        <!--{else}-->
        <li class="png"><a href="{$v['link']}">{$v['name']}</a></li>
        <!--{/if}-->
    <!--{/loop}-->
    </ul>
</div>